Process of making pitch for coating the interiors of beer and ale packages.



PATBNTED MAR.-12,190'7;

H. 0. DIPPEL. I

' PRGGESS OF MAKING PITCH FOB. COATING THE INTERIORS- OF BE ER AND ALB PACKAGES. APBLQIGATION minimum 1906- g mmm 1111 11 1 INVENTOR+ jam fiifi fey.

rm: NORRIS P575325 ca. WASHINGTON, o. c.

UNITED STATES PATENT OFFICE.

HENRY DIPPEL, OF ST. LOUIS, MISSOURI, ASSIGNOR TO BUSCH-FREUND BREWERS SUPPLY 00., OF ST. LOUIS, MISSOURI, A COPARTNERSHIP.

I PROCESS OF MAKING PITCH FOR COATING THE INTERIORS OF BEER AND ALE PACKAGES.

Specification of Letters Patent.

Patented March 12, 1907.

To all whom it may concern:

Be it known that I, HENRY O. DIPPEL, a citizen of the United States, and a resident of St. Louis, Missouri, have invented certain new and useful Improvements in Processes of Making Pitch for Coating the Interior of Beer and Ale Packages, of which the following is a specification containing a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to a process of making pitch for coating the interior of beer and ale packages, the object of my invention being to produce by a simple process a highgrade resinous product which is utilized in coating the interior of kegs, barrels, and similar wooden receptacles which are utilized for holding beer, ale, and similar products.

The drawing illustrates the apparatus utilized in the process of manufacturing the pitch, and referring by numerals to the accompanying drawing, 1 designates a distilling-kettle, the top of which is normally closed, and leading from the upper end thereof to a coil 2 is a pipe 3.

Leading from the lower end of the coil 2 is a pipe 4, which discharges into a tank 5.

6 designates a mixingkettle, and leading from the lower end of the tank 5 and dis charging into said mixing-kettle is a pipe 7, in which is arranged a suitable hand-pump 8 of any ordinary form.

9 designates a melting-kettle, and leading therefrom and discharging into the mixingkettle 6 is a suitable trough or spout 10, in which is located a screen-section 11.v

Leading from the lower end of the mixingkettle 6 and discharging into a filling-pan 12 is a pipe 13, in which is located a valve 14..

Discharging into the filling-pan 12 is a water-supply pipe 15, in which is located a valve 16.-

Leading from the filling-pan 12 is a discharge-pipe 17, in which is located a valve 18.

In the manufacture of pitch by my improved process I take approximately four thousand five hundred pounds of commercial resin of the grade known as quality G, which is approximately third-grade resin,

and this resin is placed in the distilling-kettle 1, and a medium fire is maintained beneath said kettle for a period of approximately twenty-four hours, or until the oil distilled from the melted resin within said kettle 1 after passing through the coil 2 discharges from the pipe 4 into the tank 5. I then take approximately twenty-five thousand pounds of selected quality G resin and place the same in the melting-kettle 9, and said resin is boiled in said kettle for approximately two hours and at a temperature of approximately 325 Fahrenheit. The melted resin in said kettle 9 isnow dipped from the kettle and poured into the trough or spout 10, and said melted resin passes through the screen 11 and discharges into the mixing-kettle 6. The pump 8 is now operated in any suitable manner, and the distilled oil from the tank 5 is forced through the pipe 7 and discharges into the mixing-kettle 6 and becomes thoroughly mixed with the melted resin which has been discharged into said mixing-kettle. The distilled oil and melted resin are delivered to this mixing-kettle 6 in approximately the proportions of four and one-half pounds to four and four-fifths pounds of oil to two hundred and fifty pounds of the melted resin, and after this mixture has been effected the valve 14 is opened and the mixture discharges into the filling-pan 12 where it is mixed with a sufficient amount of distilled water to impart a yellow or amber color to the compound, which is now ready for use and which is discharged through the pipe 17 to suitable tanks or receptacles. The distilled water is delivered to the filling-pan 12 through the pipe 15.

The process herein described is simple, can be carried out with a minimum amount of labor and expense, and produces a very highgrade pitch or resinous compound which is particularly adapted for coating the interior of kegs and barrels which are to contain beer, ale, or similar liquids.

I claim 1. The herein-described process of making pitch for coating the interior of beer and ale packages, which consists in mixing oil distilled from melted resin with melted resin in In testimony whereof I have signed my approximately the proportions herein speciname to this specification in presence of two to fied, and then adding water to the oil and melted resin after the same are mixed. subscribing Witnesses.

2. The herein-described process of makin Y r 5 pitch for coating the interior of beer and a1: HEB R1 DIPPEL' packages, Which consists in mixing resin-oil, Witnesses:

melted resin, and Water in approximately the M. P. SMITH, proportions herein specified. E. E. LONGAN. 

